title: Hyalinizing trabecular tumor masquerading as papillary thyroid carcinoma on fine-needle aspiration.
abstract: OBJECTIVE
  Hyalinizing trabecular tumors are rare neoplasms of the thyroid gland often mistaken for thyroid carcinoma on fine-needle aspiration. We review the distinguishing characteristics of hyalinizing trabecular tumors and their management.
  
  
  METHODS
  We present the case of a patient diagnosed with papillary thyroid carcinoma on fine-needle aspiration as well as a review of the literature.
  
  
  RESULTS
  Intraoperative findings were felt to be inconsistent with papillary thyroid carcinoma and only a thyroid lobectomy was performed pending the results from pathologic evaluation, which confirmed a benign process and a diagnosis of hyalinizing trabecular tumor. Due to the diagnostic difficulty in distinguishing hyalinizing trabecular tumors from thyroid carcinomas on fine-needle aspiration, many patients receive overtreatment for what is primarily a benign disease.
  
  
  CONCLUSIONS
  Recognition of hyalinizing trabecular tumors as a possible benign etiology of a thyroid mass can facilitate appropriate management.
authors.affiliation: Department of Otolaryngology, Head and Neck Surgery, Mayo Clinic Arizona, Phoenix, Ariz., USA.
authors.forename: Brittany E
authors.initials: BE
authors.lastname: Howard
authors.forename: Sharon H
authors.initials: SH
authors.lastname: Gnagi
authors.forename: I Tolgay
authors.initials: IT
authors.lastname: Ocal
authors.forename: Michael L
authors.initials: ML
authors.lastname: Hinni
mesh_terms: D000236:Adenoma / Q000473:pathology* / Q000601:surgery*; D044963:Biopsy, Fine-Needle; D002277:Carcinoma / Q000473:pathology* / Q000601:surgery*; D002291:Carcinoma, Papillary; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D006818:Hyalin; D008875:Middle Aged; D009369:Neoplasms / Q000473:pathology / Q000601:surgery; D000077273:Thyroid Cancer, Papillary; D013964:Thyroid Neoplasms / Q000473:pathology* / Q000601:surgery*; D013965:Thyroidectomy